package cn.edu.sdjzu.xg2121.controller;

import cn.edu.sdjzu.xg2121.domain.Teacher;
import cn.edu.sdjzu.xg2121.exception.BysjException;
import cn.edu.sdjzu.xg2121.service.TeacherService;
import cn.edu.sdjzu.xg2121.util.JSONUtil;
import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.SQLException;

@WebServlet("/tDel.ctl")
public class TeacherDeleteCtl extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //设置响应字符编码为UTF-8
        response.setContentType("application/json;charset=UTF-8");//创建JSON对象message，以便往前端响应信息
        JSONObject message_jsonObj = new JSONObject();
        String req_jsonStr = JSONUtil.getJSON(request);
        JSONObject req_jsonObj = JSON.parseObject(req_jsonStr, JSONObject.class);
        if (req_jsonObj == null) {
            message_jsonObj.put("message", "未收到请求信息");
            response.getWriter().println(message_jsonObj);
            return;
        }
        try {
            Teacher teacher = JSON.parseObject(req_jsonStr, Teacher.class);
            System.out.println(req_jsonStr);
            TeacherService.getInstance().delete(teacher);
            message_jsonObj.put("delete", teacher);
            response.getWriter().println(message_jsonObj);
        }
        catch(BysjException e){
            message_jsonObj.put("message", e.getMessage());
            response.getWriter().println(message_jsonObj);e.printStackTrace();
        } catch (SQLException e) {
            message_jsonObj.put("message", "数据库操作异常");
            System.out.println(e.getMessage());
            response.getWriter().println(message_jsonObj);
            e.printStackTrace();
        } catch (Exception e) {
            message_jsonObj.put("message", "网络异常");
            response.getWriter().println(message_jsonObj);
            e.printStackTrace();
        }
    }
}